Puzzle It Out Sudoku By Saunders, Eric

Puzzle it out! and put your mental dexterity to the test with this wonderful collection of sudoku puzzles. The puzzles inside are set across four increasingly hard difficulty levels, so there is something for every solver from the beginner to expert. Jump in at a level that suits or work your way through and see your skills improve. Or even better, give yourself a real challenge and see not see if you can solve them all!